Gephi

Gephi features an open graph viz platform providing interactive exploration and visualization program for all kinds of complex systems and networks, hierarchical and dynamic graphs. It is an open source and free software that operates on Windows, Mac and Linux systems. It is a tool for exploring and understanding graphs [mixed, directed, undirected]. It explores data by real time network manipulation and intuition-oriented analysis. It performs link analysis by revelation of underlying structures of relationships between objects particularly in scale-free networks. It does social network analysis by creating social data connectors between small-world networks and community organizations. It analyzes biological data patterns for its biological network analysis. It creates posters of high-quality printed maps for science promotion. Gephi is a data workshop that lets you interact with the representation by manipulating the shapes, colors and structures to discover its hidden properties. It aims to help data analysts to formulate hypothesis, discover patterns intuitively, isolate faults or structures singularities while searching data. It complements traditional statistics as Visual Analytics by visualization through interactive interfaces is recognized to facilitate reasoning. You can profit from its fast graph visualization powered by established OpenGL engine for pattern discovery in large graphs. It provides an efficient and interactive network exploration with up to 1,000,000 edges and 50,000 nodes. Use dynamic filter to visualize and manipulate your graphs. Gephi provides the latest layout algorithms that give shape to your graphs. You can choose your layout settings [such as force-based algorithms and graph coarsening for multi-level algorithms] from the Layout palette while working for increased user feedback and experience. The statistics and metrics frameworks provides the most common metrics for scale-free networks and SNA [social network analysis] with features such as random generators, community detection [modularity], diameter, betweenness, closeness, clustering coefficient, PageRank, average shortest path and HITS. Gephi features DNA [dynamic network analysis] by filtering dynamic structures such as social networks in a timeline. You can perform graph streaming, and import temporal graph as GEXF file. Create cartography by using partition data and ranking to make your network presentation meaningful along with customized colors, labels and sizes. The vectoral preview module lets you aesthetically improve your representation before converting it to PDF or SVG format. Use data attributes and built-in clustering algorithms to create multi-level graphs such as hierarchical and clustering graphs. Filer your network and build new networks from your filtering results. Perform complex filter queries without scripting, and save your favorite queries. Use Data Table to view and edit data. Organize your work and save your sessions as .gephi project files. The architecture is modular and functionalities can be added. New features like Layouts, Metrics and Filters can be packaged in plug-ins and shared. It has Netbeans platform and API for extendable features. Native file formats are GML, NET [Pajek], GDF[GUESS], GraphML [NodeXL], GEXF, etc.

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Gephi for MAC

Gephi is a visualization software for understanding and exploring graphs for your data analysis and research. Gephi 0.8.1beta is the latest stable version with new features including global and local scale ranking, new timeline with custom bounds settings, animation, embedded sparkline and date ticks, self-loop filter and modularity [community detection] for added edge weight support and resolution setting. It has better preview performance when hiding the edges. Gephi is a cross-platform software developed in Java. It requires Java 6 and later. Minimum hardware requirements are 128MB RAM, 500 MHz CPU, OpenGL 1.2, compatible graphic card for Gephi’s 3D OpenGL engine. Java 1.6 is available only on 64bit Intel Macs. Java 6 can be installed on Mac OS X Leopard. Soylatte/OpenJDK is not supported on Mac OS.

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